根据不同期限贷款、债券的本息和风险情况以及项目各期末盈利水平，提出了一个使资金成本最低的贷款、债券组合筹资优化模型。
Based on the interest and risk conditions of loans and bonds, and the profit levels of the project in different periods, an optimal model for fund raising by combining loans and bonds is proposed.
工程设计中需要进行多方案比较，每个方案又由多项目标组成。选择出最佳的组合方案，使设计方案达到优化，这是模糊数学问题。
It is needed to compare a few schemes in engineering design, select the best scheme, and make it optimization, which is a typical fuzzy mathematical problem.
通过项目组合管理的运用，建立规范的产品研发流程并不断优化，是提升企业快速推出新产品的有效途径。
Using Project Portfolio Management to set up and optimize NPD process is an effective way for enterprise to improve its ability and efficiency of new product development.
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